Wednesday, February 29, 2012

What is the relationship between DNA, genes and chromosomes?

What is the relationship between DNA, genes and chromosomes? In other words are they made out of the same material? Do they have the same function or how is their function related?What is the relationship between DNA, genes and chromosomes?
When a cell needs to duplicate, DNA strands are tightly coiled into chromosomes (chromosomes are made up of DNA and protein). Genes are certain stretches of DNA that code for a certain protein with a specific bodily function. On a chromosome, the location of the gene is called a locus.

DNA contains all the genetic material that decides a person's traits, such as hair color, eye color, etc. The DNA also passes on traits from the parents to the offspring, which is why children always have common traits with their parents. Genes carry the information needed to pass on these traits.

In summary, DNA, genes, and chromosomes are very similar in their 'composition', since genes are stretches of DNA that codes for certain proteins and chromosomes are made up of coiled DNA. Their functions are the same in the sense that they are all vital in passing on traits from the parent to the child, and therefore in determining the physical traits of the offspring.

Hope this helps!What is the relationship between DNA, genes and chromosomes?
Chromosomes contain ~ equal parts of scaffolding protein and DNA that form a linear structure. The structure can be opened out for access to genes (open reading frames) located along the DNA or the structure can be compressed for easy handling during cell replication.

DNA is a polypeptide made up of deoxyribonucleotides, or bases, chained together in strands. Running in opposite directions two strands form the helical ladder of DNA. Base sequences in the region we call a gene can be read as groups of three bases or codons. A gene has a reading frame structure from a promoter where transcription begins and continues through the reading frame to a point where transcription ends.鈥?/a>

The gene is the trait coding sequence along the DNA strand that encodes either a protein or a functional RNA.

The gene is the address, or loci, of a coding frame that is occupied by a particular allele, or version, of the gene. Everyone has the gene but not everyone has the same allele of the gene.What is the relationship between DNA, genes and chromosomes?
DNA is a chemical compound responsible for carrying genetic information from one generation to other so it is a genetic material.

gene is a broad term refers to all genetic material which code a active polypeptide and have a cistron , muton and recon activity. it may be RNA or DNA. both can act as gene.

chromosome is a supercoild structure of DNA either interact with histon or histon like protein(prokaryotes). it is localized to certain specified locaton in cell.
Chromosomes contain genes, genes are segments of the chromosome which is made out of DNA (deoxyribonucleic acid).

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